Sound activated camera app.

Can anyone suggest an app that allows me to snap a picture with sound activation? I would also prefer this app to have a shutter timer as well. My last request would be that it is a free app...or ateast have a full version trial to make sure it is worth the potential cost.

There is an app that does just that. Its called whistle camera and what it does is take a picture whenever it hears a whistle. perfecto por taking pictures of yourself or group photos without anyone being left out https://play.google.com/store/apps/d...whistlecamfree